Koenigsegg has revealed that it has yet to deliver any engines to Spyker because the Dutch sports car maker has failed to meet the requirements of its agreement.

At 2017’s Geneva Motor Show, the two companies announced a deal which would see future Spyker models powered by bespoke engines from Koenigsegg. The agreement was seen as one which would help save Spyker and ensure it can produce some compelling cars.

Talking to Autovisie, Koenigsegg spokesman Steve Ward said nothing has happened in the past 18 months.

“We have not built any engines for Spyker. Spyker has not met the conditions, so we have not started building.

“We wish Spyker a good future and hope that they will once again be able to deliver their fascinating cars.”

Ward failed to specify exactly what conditions of the deal Spyker has yet to meet.

The Dutch manufacturer intended on starting production of Koenigsegg-powered C8 models this summer. The vehicle was to use a Koenigsegg-built, naturally-aspirated 5.0-liter V8 engine delivering 600 hp and 442 lb-ft of torque. It also revealed prototypes of the C8 Preliator and C8 Preliator Spyder and announced that it planned to build 50 and 100 examples of each.

In its early years, Spyker made a name for itself with edgy designs and beautifully-crafted interiors. Despite producing some intriguing vehicles in the past, it has had its fair share of financial difficulties in recent years. The company had an unsuccessful and very expensive foray into Formula One in 2007 and attempted to turn around Saab in 2010, but subsequently went bankrupt in 2014 and was restructured.